JavaScript Logical Operator

The JavaScript Comparison Operators are used to compare two variables, what if we want to compare more than one condition? Very simple, JavaScript Logical Operator will do the trick for you.

The Logical operators in JavaScript Programming language are used to combine two or more conditions and perform the logical operations using && (Logical AND), || (Logical OR) and ! (Logical NOT). Below table describes them

OPERATORS

NAME

DESCRIPTION

EXAMPLE

&&

Logical AND

It will return True when both conditions are true

If (age > 18 && age <=35)

||

Logical OR

It will returns True when at-least one of the condition is true

If (age > 35 || age < 60)

!

Logical NOT

If the condition is True, logical NOT operator makes it false

If age = 18 then, !( age = 18) returns false.

Let us see the truth tables behind the JavaScript Logical Operator for better understanding